Understanding Blockchain and Its Applications

What is the primary difference between blockchain and Bitcoin?

• Blockchain is a technology with uses beyond cryptocurrencies.

• Bitcoin and blockchain are synonymous.

• Bitcoin is a technology, while blockchain is a currency.

• Blockchain is a type of cryptocurrency.

How does a distributed ledger technology (DLT) ensure transaction approval?

• By requiring approval from a central authority.

• By allowing any participant to approve transactions.

• By having over half the network participants verify the transaction.

• By using a single system to verify transactions.

What makes blockchain tamper-resistant?

• The requirement for only one node to approve changes.

• The ability to quickly generate new hashes.

• The use of a central authority to monitor changes.

• The decentralized nature and cryptographic hashes.

Why is blockchain considered impractical for some applications?

• Because it is too fast for most transactions.

• Due to its high cost of implementation.

• Because it lacks security features.

• Because it requires every node to track every transaction, slowing down the process.

What is a potential use of blockchain in the healthcare industry?

• Managing patient appointments.

• Tracking medical trial data while maintaining anonymity.

• Storing patient medical records centrally.

• Facilitating doctor-patient communication.